Preheat oven to 400°F.,In a medium-sized bowl, combine flour, baking powder, salt, and sugar.,Cut butter into the flour mixture using a pastry cutter or fork. Work the butter into the flour until it resembles corn meal with some pea-sized chunks of butter remaining.,Stir in the cheese until it is evenly coated with flour.,Repeat the process with the sausage.,In a measuring cup, combine mustard and beer. Stir into the rest of the ingredients until the dough is just starting to pull away from the sides of the bowl, but not in a complete clump yet.,______,Pat down into a 1" thick disc. Cut into six triangles, and place on a baking sheet.,Bake for 20 minutes.